GR3000771T3 - Throttling device, method for using the throttling device and also device for using the method - Google Patents

Throttling device, method for using the throttling device and also device for using the method

Info

Publication number
GR3000771T3
GR3000771T3 GR90400629T GR900400629T GR3000771T3 GR 3000771 T3 GR3000771 T3 GR 3000771T3 GR 90400629 T GR90400629 T GR 90400629T GR 900400629 T GR900400629 T GR 900400629T GR 3000771 T3 GR3000771 T3 GR 3000771T3
Authority
GR
Greece
Prior art keywords
pressure
orifice
supply
high pressure
low
Prior art date
Application number
GR90400629T
Other languages
Greek (el)
Inventor
Simon Paul Peter Ottengraf
Johannes Gerardus Wijers
Original Assignee
Nijhuis Water Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nijhuis Water Bv filed Critical Nijhuis Water Bv
Publication of GR3000771T3 publication Critical patent/GR3000771T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1431—Dissolved air flotation machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Radiation-Therapy Devices (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Water Treatments (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The invention relates to a throttling device for the supply of liquid under high pressure (P1) having a gas dissolved in it into a liquid of lower pressure (P0) said device having a supply orifice (2,7) between the high pressure and low pressure side of a dimension, which only depends on the required flow capacity as well as downstream of said orifice a free floating body (3, 9) of a dimension larger than the orifice (2,7), which body forms a slit (5,10) through which the high pressure flow is deflected into the space of lower pressure, said slit having sufficient length to generate a low flow pressure which, together with the low pressure of the low pressure space, keeps the body in equilibrium with the pressure forces acting at the supply side. The body can have different forms and adjusts itself depending on the circumstances. The invention also relates to a method of supplying the throttling device in a process which requires a mist of gas bubbles as well as a device for performing the method, said device comprising a tube which stabilizes the generated mist.
GR90400629T 1986-09-11 1990-09-10 Throttling device, method for using the throttling device and also device for using the method GR3000771T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8602297A NL8602297A (en) 1986-09-11 1986-09-11 Throttling device and method for applying it.

Publications (1)

Publication Number Publication Date
GR3000771T3 true GR3000771T3 (en) 1991-10-10

Family

ID=19848532

Family Applications (1)

Application Number Title Priority Date Filing Date
GR90400629T GR3000771T3 (en) 1986-09-11 1990-09-10 Throttling device, method for using the throttling device and also device for using the method

Country Status (8)

Country Link
US (1) US4961857A (en)
EP (1) EP0259938B1 (en)
AT (1) ATE54123T1 (en)
CA (1) CA1289848C (en)
DE (1) DE3763400D1 (en)
ES (1) ES2016835B3 (en)
GR (1) GR3000771T3 (en)
NL (1) NL8602297A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95211C (en) * 1994-04-05 1996-01-10 Wiser Oy Method and plant for treating a liquid stream to be led to a flotation plant or equivalent
DE19702181A1 (en) * 1997-01-23 1998-07-30 Marko Prof Dr Ing Zlokarnik Funnel nozzle with flow-baffling trip wires to break up laminar surface boundary layer
CA2337975C (en) * 2001-02-26 2010-11-09 Hydroxyl Systems Inc. Wastewater treatment system
US7534357B2 (en) 2005-03-28 2009-05-19 Navalis Environmental Systems, Llc Dual-train wastewater reclamation and treatment system
US20070158276A1 (en) * 2006-01-10 2007-07-12 Navalis Environmental Systems, Llc Method and Apparatus for Sequenced Batch Advanced Oxidation Wastewater Treatment
EP2483207A4 (en) * 2009-09-30 2014-09-03 Beijing China Water Golden Water Desalination Technology Applic And Res Co Ltd Liquid treatment system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1425387A (en) * 1964-12-03 1966-01-24 Degremont Device for injecting gas into a liquid
US3645892A (en) * 1969-06-13 1972-02-29 Bowles Fluidics Corp Aeration and foam separation employing vortex element
AT330688B (en) * 1973-11-13 1976-07-12 Georg Hamburger & Co K G NOZZLE FOR DISTRIBUTING GASES IN LIQUIDS, IN PARTICULAR WASTE WATER
GB1593262A (en) * 1977-09-21 1981-07-15 Babcock Waster Treatment Ltd Pressure reducing devices
DE3004223A1 (en) * 1980-02-06 1981-08-13 Günther 6056 Heusenstamm Heß Distribution of gases or vapours in liquids - where pressurised gas or vapour flows through nozzle closed by spring loaded piston
DE3008476A1 (en) * 1980-03-05 1981-09-17 Bayer Ag, 5090 Leverkusen METHOD FOR FLOTATION AND USE OF FUNNEL NOZZLES FOR FLOTATION
IT1133340B (en) * 1980-09-26 1986-07-09 Lussoria Antonietta Sciolla EQUIPMENT FOR GAS MIXING IN A LIQUID, PARTICULARLY FOR THE OXYGENATION OF POLLUTED WATERS
US4490248A (en) * 1982-07-06 1984-12-25 Filippov Jury M Method and flotation machine for concentrating ores of non-ferrous metals

Also Published As

Publication number Publication date
NL8602297A (en) 1988-04-05
DE3763400D1 (en) 1990-08-02
EP0259938B1 (en) 1990-06-27
US4961857A (en) 1990-10-09
EP0259938A1 (en) 1988-03-16
CA1289848C (en) 1991-10-01
ES2016835B3 (en) 1990-12-01
ATE54123T1 (en) 1990-07-15

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